7427976

Liquid Crystal Display

PublishedSeptember 23, 2008
Assigneenot available in USPTO data we have
Technical Abstract

Patent Claims
4 claims

Legal claims defining the scope of protection, as filed with the USPTO.

1

1. A liquid crystal display for image display using a liquid crystal display panel, comprising: a write-gray scale level determining section for determining write-gray scale level data for input image data that compensates an optical response characteristic of the liquid crystal display panel, in accordance with, at least, a combination of gray scale level transitions from a previous vertical display period to a current vertical display period; an achievable gray scale level determining section for generating achievable gray scale level data for input image data after a lapse of one vertical display period of the liquid crystal display panel, in accordance with, at least, a combination of gray scale level transitions from one vertical display period to the next; and a temperature detector for detecting a device interior temperature, wherein the achievable gray scale level determining section has a plurality of achievable gray scale level table memories for a plurality of device interior temperatures, each of the plurality of achievable gray scale level table memories stores achievable gray scale level parameters, each representing achievable gray scale brightness after the lapse of one vertical display period of the liquid crystal display panel, obtained from the optical response characteristics of the liquid crystal display panel, the write-gray scale level determining section has a plurality of write-gray scale level table memories for a plurality of device interior temperatures and determines the write-gray scale level data to be supplied to the liquid crystal display panel by referring to one of the plurality of write-gray scale level table memories, and the achievable gray scale level determining section selects, from the plurality of achievable gray scale level table memories, an achievable gray scale level table memory for the detected device interior temperature, and determines the achievable gray scale level data by referring to the selected achievable gray scale level table memory.

2

2. A liquid crystal display for image display using a liquid crystal display panel, comprising: a write-gray scale level determining section for determining write-gray scale level data for input image data that compensates an optical response characteristic of the liquid crystal display panel, in accordance with, at least, a combination of gray scale level transitions from a previous vertical display period to a current vertical display period; an achievable gray scale level determining section for generating achievable gray scale level data for input image data after a lapse of one vertical display period of the liquid crystal display panel, in accordance with, at least, a combination of gray scale level transitions from one vertical display period to the next; and a temperature detector for detecting a device interior temperature, wherein the achievable gray scale level determining section has a plurality of achievable gray scale level table memories for a plurality of device interior temperatures, each of the plurality of achievable gray scale level table memories stores achievable gray scale level parameters, each representing achievable gray scale brightness after the lapse of one vertical display period of the liquid crystal display, obtained from the optical response characteristics of the liquid crystal display panel, the write-gray scale level determining section determines the write-gray scale level data to be supplied to the liquid crystal display panel, based on achievable gray scale level data of the liquid crystal display panel, corresponding to input image data at the previous vertical display period, output from the achievable gray scale level determining section and the input image data at the current vertical display period, the achievable gray scale level determining section selects, from the plurality of achievable gray scale level table memories, an achievable gray scale level table memory for the detected device interior temperature, and determines the achievable gray scale level data by referring to the selected achievable gray scale level table memory, the write-gray scale level determining section has a plurality of write-gray level table memories for a plurality of device interior temperatures, each of the plurality of write-gray scale level table memories stores write-gray scale level parameters, each representing write-gray scale brightness in accordance with a combination of gray scale level transitions, and the write-gray scale level determining section selects, from the plurality of write-gray scale level table memories, a write-gray scale level table memory for the detected device interior temperature, and determines the write-gray scale level data by referring to the selected write-gray scale level table memory.

3

3. The liquid crystal display according to claim 2 , wherein the achievable gray scale level parameters stored in each of the plurality of achievable gray scale level table memories are achievable gray scale level parameters for a representative gray scale level transition pattern of every representative gray scale level distributed evenly or unevenly.

4

4. The liquid crystal display according to claim 2 , wherein the write-gray scale level parameters stored in each of the plurality of write-gray scale level table memories are write-gray scale level parameters for a representative gray scale level transition pattern of every representative gray scale level distributed evenly or unevenly.

Patent Metadata

Filing Date

Unknown

Publication Date

September 23, 2008

Inventors

Michiyuki Sugino

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Cite as: Patentable. “LIQUID CRYSTAL DISPLAY” (7427976). https://patentable.app/patents/7427976

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LIQUID CRYSTAL DISPLAY — Michiyuki Sugino | Patentable